OpenStudy (anonymous):

Salma photocopied the design for a monorail track system. The figure below shows the design and its photocopy. The ratio of DA : BC is 1 : 2. The total length of track on the design is 47 meters. What is the length, in meters, of side EH on the photocopied image?

5 years ago
OpenStudy (anonymous):
5 years ago

OpenStudy (anonymous):

Let DA = x, BC = 2x The total perimeter of the figure on the left is 47 = 15 + 17 + x + 2x Solve for x The problem seems to assume that DA = EH.

5 years ago
OpenStudy (anonymous):

ok

5 years ago
OpenStudy (anonymous):

i got 22.5 but i think its wrong.

5 years ago
OpenStudy (anonymous):

is it 15 ?

5 years ago
OpenStudy (anonymous):

solve for x 15 = 3x

5 years ago
OpenStudy (anonymous):

5

5 years ago
OpenStudy (anonymous):

I think that should be correct.

5 years ago
OpenStudy (anonymous):

should i plug it in to b sure?

5 years ago
OpenStudy (anonymous):

Always.

5 years ago
OpenStudy (anonymous):

47=15+17+x+2x 47=15+17+5+2(5) 47=15+17+5+10 47=15+17+15 47=15+32 47=47 CORRECT.!

5 years ago
OpenStudy (anonymous):

vg

5 years ago
OpenStudy (anonymous):

thanks.

5 years ago